6740161398 has 24 divisors (see below), whose sum is σ = 14732923608. Its totient is φ = 2226837312.

The previous prime is 6740161381. The next prime is 6740161409. The reversal of 6740161398 is 8931610476.

It is a happy number.

6740161398 is a `hidden beast` number, since 67 + 40 + 161 + 398 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1654840 + ... + 1658907.

It is an arithmetic number, because the mean of its divisors is an integer number (613871817).

Almost surely, 2^6740161398 is an apocalyptic number.

6740161398 is an abundant number, since it is smaller than the sum of its proper divisors (7992762210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6740161398 is a wasteful number, since it uses less digits than its factorization.

6740161398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313868 (or 3313865 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 6740161398 is about 82098.4859665512. The cubic root of 6740161398 is about 1888.9629163788.

The spelling of 6740161398 in words is "six billion, seven hundred forty million, one hundred sixty-one thousand, three hundred ninety-eight".